Family name Ornella-Mariana (Ornella-Mariana 
) , all around the world, is an extremely rare last name. Much more frequently, Ornella-Mariana is the forename as well as the last name. Parts of the name also exists independently as a first name Ornella, and a first name Mariana.
| VARIANT | COUNTRY |
|---|---|
| Ornella-Mariana | Democratic Republic of the Congo |